To check if a sequence is Cauchy in a metric space, we need to use the definition and the metric function. We need to show that for any epsilon > 0, we can find an N such that for any m, n > N, we ...

A sequence is an ordered collection of elements. In Python, there are several built-in sequence types, including strings, lists, tuples, and ranges. Here are some examples: A collection is a group of ...